Home / 330,030.20-494,930.10-172,206.20

Finding the Fourth Proportional to 330,030.20, 494,930.10 and 172,206.20

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Solution

The fourth proportional to 330,030.20, 494,930.10 and 172,206.20 is: 258,249.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,030.20 : 494,930.10 = 172,206.20 : x
  2. Step 2: Convert to fraction form
    330,030.20/494,930.10 = 172,206.20/x
  3. Step 3: Cross multiply
    330,030.20x = 494,930.10 × 172,206.20
  4. Step 4: Simplify right side
    330,030.20x = 85,230,031,786.62
  5. Step 5: Solve for x
    x = 85,230,031,786.62/330,030.20
  6. Step 6: Final answer
    x = 258,249.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.